Haseltonia 12


  • Resolving “Nyffeler’s Puzzle”—the intriguing taxonomic position ofBlossfeldia by Charles A Butterworth
  • Loss of long-shoot leaves may mask terminal stem segment age in ocotillo (Fouquieria splendens) by Keith T Killingbeck
  • Tunilla picardoi, a newly validated species from salta (Argentina) by Alessandro Guiggi
  • Euphorbia gilbertiana: a new distinctive dwarf succulent euphorbia from southern ethiopia by Philippe Bisseret and Ernst Specks
  • Aloe jibisana (Asphodelaceae), a new species from an isolated north Kenya mountain by Leonard E Newton
  • Agave attenuata ssp dentata (Roezl) by Ullrich Bernd Ullrich
  • Chromosomes and hybrids of Echeveria X. south American species of series nudae by Charles H Uhl
  • Succulent plant diversity in Turkey I. stonecrops (Crassulaceae) by Faris Karahan, Işık Öz, Neslihan Demircan and Ray Stephenson
  • Little-known Crassulaceae of Central Peru by Guillermo Pino
  • Compendium of new taxa and new combinations from Cactus and Succulent Journal (January 2004–December 2006)
  • A new combination in the genus Agave by Julia Etter and Martin Kristen
  • Haseltonia 11 errata


Front Cover: Blossfeldia liliputana, illustrated here in watercolor by Gerhard Marx, is undoubtedly the smallest cactus and may also be the most enigmatic of all cacti, confounding us with its physiological, anatomical, morphological, ecological, and evolutionary peculiarities. In this issue, Charles Butterworth brings us closer to understanding the taxonomic placement of this intriguing plant.

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